Rotary hammer is a power tool used to do heavy-duty tasks such as drilling, shoveling, chiseling or breaking, in concrete, brick, marble or other stone materials. Usually, the drill bits used with rotary hammer are SDS, SDS plus or SDS max. Rotary hammer uses a piston mechanism instead of a clutch, which makes it produce a greater impact force to drill and break more efficiently.
Rotary Hammer Functions
Generally, rotary hammer has 3 functions: Electric drill, electric hammer and electric pick. In addition, rotary hammer can be used in repetitive drilling for large rebar anchor holes, and drilling holes in concrete and masonry walls. When used in hammering mode, rotary hammer can provide a drilling function similar to jackhammer. Powerful hammering action can break the masonry, and the wall can be demolished using the drill bit groove. In addition to drilling and breaking, rotary hammer can turn off the rotation function and only use the impact function. Use chisels or other pointed accessories for small chipping operations.
The Difference between Rotary Hammer and Hammer Drill
Rotary hammer is similar to hammer drill. They have similar functions. The differences between them are mainly the internal driving mechanism of hammering action, chuck, hammering force, workload and the practical application problems they can solve (see the table below for details). Simply put, if you want to drill some smaller diameter holes in concrete, a hammer drill is the best choice. If you need to drill a larger diameter hole, or perform demolition and breaking operations, please take a look at the rotary hammer.
|Feature||Rotary Hammer||Hammer Drill|
|Drive Mechanism||Electric/Pneumatic (air)||Corded/Cordless (battery powered)|
|Function Mode||Drill, Hammer drill, Hammer only||Impact drill/Flat drill|
|Power||Bit bigger than electric drill/driver||More powerful than hammer drill|
|Chuck||SDS chuck||3-jaw chuck|
Here are best rotary hammers for sale, for drilling, shoveling, chiseling or breaking in concrete, marble or other stone. Equipped with SDS drill bit. Our cheap rotary hammer with optional power in 500W~1050W, more powerful than cordless rotary hammer. Drilling diameter 20mm~38mm. Find quality rotary hammer you need!